methyl 5-amino-6-(7-iodo-5,8-dihydro-6-methoxy-5,8-dioxo-2-quinolyl)-4-<3,4-dimethoxy-2-(phenylmethoxy)phenyl>-3-methyl-2-pyridinecarboxylate

methyl 5-amino-6-(7-azido-5,8-dihydro-6-methoxy-5,8-dioxo-2-quinolyl)-4-<3,4-dimethoxy-2-(phenylmethoxy)phenyl>-3-methyl-2-pyridinecarboxylate

methyl 5-amino--6-(5,8-dihydro-6-methoxy-5,8-dioxo-2-quinolyl)-4-<3,4-dimethoxy-2-(phenylmethoxy)phenyl>-3-methyl-2-pyridinecarboxylate

methyl 5-amino-4<3,4-dimethoxy-2-(phenylmethoxy)phenyl>-6-<3-<6-methoxy-5-<(phenylsulfonyl)oxy>phenyl>-2-quinolyl>-3-methyl-2-pyridinecarboxylate

methyl 4<3,4-dimethoxy-2-(phenylmethoxy)phenyl>-5-formyl-3,6-dimethyl-2-pyridinecarboxylate 1-oxide